Fix typo in disaster recovery documentation (#433)

Signed-off-by: Elfar Alfreðsson <61050723+elfaralfreds@users.noreply.github.com>

Author: elfaralfreds

content/info/disaster-recovery.md

@@ -5,6 +5,6 @@ icon: icons/info/desaster.svg
 ---
 Define your disaster recovery objectives through continuous backup on object
 stores, and exploits the native Point-In-Time-Recovery capabilities of
-PostgreSQL by boostrapping a new cluster starting from a backup to a given
+PostgreSQL by bootstrapping a new cluster starting from a backup to a given
 timestamp.